docs: def get_bucket_type_props(self, bucket_type):
          """
          Get properties for a bucket-type
          """
          self._check_bucket_types(bucket_type)
          url = self.bucket_type_properties_path(bucket_type.name)
          status, headers, body = self._request('GET', url)
  
          if status == 200:
              props = json.loads(bytes_to_str(body))
              return props['props']
          else:
              raise RiakError('Error getting bucket-type properties.')